Bad EGR
04-27-2008, 08:25 PM
#11
1st Gear Member
Join Date: Mar 2008
Location: Louisiana
Posts: 98
RE: Bad EGR
http://rjminjectiontech.com/?p=9
this site might have some of what you need. I think this might be my problem. gonna change my MAF first since that's the code i'm getting atm
this site might have some of what you need. I think this might be my problem. gonna change my MAF first since that's the code i'm getting atm
04-27-2008, 08:30 PM
#12
5th Gear Member
Join Date: Jan 2006
Location: Puerto Rico
Posts: 3,926
RE: Bad EGR
ORIGINAL: gobabygo
The EGR valve, or Exhaust Gas Recirculation valve, is a vacuum controlled valve which allows a specific amount of your exhaust back into the intake manifold. This exhaust mixes with the intake air and actually cools the combustion process. Cooler is always better inside your engine. The exhaust your EGR valve recirculates also prevents the formation of Nitrogen related gases. These are referred to as NOX emissions, and are a common cause for failing emissions testing. Unfortunately, your EGR valve can get stuck, causing NOX gases to build up. You'll know if your EGR valve is stuck or malfunctioning because your car will experience symptoms like rough idle and bucking on accelertaion.
i stole this info off another site. BTW.
The EGR valve, or Exhaust Gas Recirculation valve, is a vacuum controlled valve which allows a specific amount of your exhaust back into the intake manifold. This exhaust mixes with the intake air and actually cools the combustion process. Cooler is always better inside your engine. The exhaust your EGR valve recirculates also prevents the formation of Nitrogen related gases. These are referred to as NOX emissions, and are a common cause for failing emissions testing. Unfortunately, your EGR valve can get stuck, causing NOX gases to build up. You'll know if your EGR valve is stuck or malfunctioning because your car will experience symptoms like rough idle and bucking on accelertaion.
i stole this info off another site. BTW.
04-27-2008, 08:37 PM
#13
1st Gear Member
Join Date: Mar 2008
Location: Louisiana
Posts: 98
RE: Bad EGR
I'm just at my witts end with my car. It could be so many things causing it to not make power or rev or idle properly. I changed the fuel filter today and when i turned it over it released this brown gunk. The car had been sitting for awhile. The in side dumped out gunk the outlet just fuel so I THINK the fuel system up to the motor may be ok. Still lookin for some stock 19lb injectors. Could be the MAF, or the EGR, or the throttle position sensor, could be a stopped up exhaust system. Anything else that would make a car act that way? No power after 2500 rpm's or so, won't rev past 4500 period, idle's like butt often dies. my obd1 reader says it's the MAF but before i go and buy that should I check anything else?
04-27-2008, 09:08 PM
#15
5th Gear Member
Join Date: Jan 2006
Location: Puerto Rico
Posts: 3,926
RE: Bad EGR
You may have more than one problem, now that you mention the tach jumping case....... if the MAF failure code shows up, all you need to do is monitor its inputs, ground and output.....
For the tach "bouncing" issue.... check the experience I had (1 of 4) at http://forums.corral.net/forums/showthread.php?t=729314
LUK
For the tach "bouncing" issue.... check the experience I had (1 of 4) at http://forums.corral.net/forums/showthread.php?t=729314
LUK
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